Evaluation of high-resolution cone beam computed tomography in the detection of simulated interradicular bone lesions

The purpose of this study is to assess the accuracy of limited-volume high-resolution cone beam CT (CBCT) in the detection of periodontal bone loss. 163 simulated periodontal lesions of different depths were created in dried human hemimandibles. Specimens were imaged using the intraoral paralleling...

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Bibliographic Details
Published in:Dento-maxillo-facial radiology 2009-03, Vol.38 (3), p.156-162
Main Authors: Noujeim, M, Prihoda, Tj, Langlais, R, Nummikoski, P
Format: Article
Language:English
Subjects:
Alveolar Bone Loss - diagnostic imaging
Area Under Curve
Cone-Beam Computed Tomography - methods
Cone-Beam Computed Tomography - statistics & numerical data
Dentistry
Humans
Imaging, Three-Dimensional - methods
Imaging, Three-Dimensional - statistics & numerical data
Likelihood Functions
Linear Models
Mandible - diagnostic imaging
Radiographic Image Enhancement - methods
Radiography, Bitewing - methods
Radiography, Bitewing - statistics & numerical data
ROC Curve
Tooth Root - diagnostic imaging
X-Ray Film - statistics & numerical data
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Summary:The purpose of this study is to assess the accuracy of limited-volume high-resolution cone beam CT (CBCT) in the detection of periodontal bone loss. 163 simulated periodontal lesions of different depths were created in dried human hemimandibles. Specimens were imaged using the intraoral paralleling technique and limited-volume CBCT (3DX Accuitomo; Morita Co. Ltd, Kyoto, Japan). Ten viewers examined the images. Data were analysed with receiver operating characteristics (ROC) analysis. ROC curves were generated and the areas under the maximum-likelihood curves (A(z)) were compared. Other statistical analyses were used to detect the normality of the distribution of the results. The results are reported as the individual viewer ROC curve areas for each of the two imaging modalities. In all experiments the A(z) area for CBCT (0.770-0.864) was larger than the A(z) area for periapical film (0.678-0.783); statistical tests showed a statistically significant difference between the two modalities. Results indicate that the CBCT technique has better accuracy and diagnostic value than periapical films in the detection of interradicular periodontal bone defects.
ISSN:0250-832X
1476-542X
DOI:10.1259/dmfr/61676894